ZIN stands for Zumba Instructor Network, which is a global community of licensed Zumba instructors. These dedicated individuals undergo rigorous training and certification to become ZIN members, allowing them to teach Zumba classes and share their passion for fitness and dance with others.

ZIN = Zumba Instructor Network. It’s provided by the Zumba company to kind of create a “standard” for classes and give you new options for music and choreography.